>>1383517great idea.
until the wind picks up and you want to put on your jacket and have to carry all your food and water and whatever.
or if you want to carry 2+ liters of water plus enough food for an actual all day hike.
or if you just want to have a decent lunch halfway through a mellow hike.
and i've never had a daypack impede ventilation of my upper body, strain my shoulders or not be low profile. so i don't know what the fuck you're on about.
>mfw tryhards like you think their "solution" is one size fits all